diff -urN /usr/ports/www/opera/Makefile opera/Makefile
--- /usr/ports/www/opera/Makefile	Tue Aug  9 20:45:00 2005
+++ opera/Makefile	Sat Sep  3 10:21:22 2005
@@ -54,6 +54,10 @@
 LIB_DEPENDS+=	c_r.4:${PORTSDIR}/misc/compat4x
 .endif
 
+.if ${OSVERSION} >= 600000
+LIB_DEPENDS+=	libz.2:${PORTSDIR}/misc/compat5x
+.endif
+
 .if ${HAVE_GNOME:Mgnomehier}!=""
 PLIST_SUB+=	GNOME=""
 .else